.app_header__nav {
    display: none;
    padding: 0 .5em;
}

.app_header__nav-ul {
    padding: 0;
    margin: 0;
    display: flex;
    list-style: none;
}

.app_header__nav-a {
    display: block;
    padding: 1em;
    color: #26ace1;
    font-weight: bold;
    line-height: 1;
    text-transform: uppercase;
}

.app_header__nav-a:hover,
.app_header__nav-a:focus {
    background: #fafafa;
    color: #ec1946;
}

@media (min-width: 768px) {
    .app_header__nav {
        display: block;
    }
}